TIP551 User Manual
Contents
1. 3 1 Analog Output 2 ne dade eee aaa aad 3 2 Data Correction 3 2 1 DAC Correction Formula for OV 10V Output Range 3 2 2 DAC Correction Formula for 10V Output Range 4 ID Prom Contents 4 1 ID PROM Contents TIP551 10 V1 0 5 IPAddressing 5 1 Channel Select Register Address 01 5 1 1 Output Channel Selection 5 1 2 Automatic Load Bit EE 5 2 Status Register Address 03 5 2 1 DACBUSY 2 222 200 nett teen eens 5 2 2 VR Voltage Range 5 2 3 ERROR AA ee Rew Mana 5 3 Data Register Address 04 5 4 Load Register Address 07 6 Analog Output Code 6 1 Bipolar Output Code 6 2 Unipolar Output Code 7 Jumper Configuration 8 IP VO connector u Kaka eee YA 8 1 Analog Output Connections 8 2 Power Input Connections BRA OO N oa QI OO DM YN N O TIP551 User Manual Version 1 0 TEWS DATENTECHNIK Figure 1 TIP551 Block Diagram2. 1 Figure 2 ID PROM Contents TIP551 10 V1 0 5 Figure 3 CHANSEL Channel Select Register 7 Figure 4 Output Channel Select Table 7 Figure 5 STATREG Status Register 8 Figure 6 DATAREG Data Register 9 Figure 7 TIP551 Jumper Configuration for Voltage Ranges 11 Figure 8 TIP551 Analog Output Connections 12 Figure 9 TIP551 Power Input Connections 13 TIP551 User Manual Version 1 0 TEWS DATENTECHNIK 1 Product Description The TIP551 is an IndustryPack compatible module with four 16 bit D A channels which are galvanically isolated from the IndustryPack logic interface Output voltage ranges of 10 V or 0 V to 10 V are selectable by jumper for the four D A channels After RESET all D A channels default to OV Each TIP551 is calibrated at the factory Calibration information of the D A channels is stored in the Identification PROM unique to each IP ES DC DC converter Control amp Interface optocouplers IndustryPack 1 0 interface o O je 2 D o x o O oO gt u per 02 5 Oo Cc Figure 1 TIP551 Block Diagram TIP551 User Manual Version 1 0 1 TEWS DATENTECHNIK 2 Technical Specification Logic Interface Size I O Interface Analog Outputs Isolatio
3. A write access to the DAC Channel Select Register CHANSEL starts the serial data transfer to the DAC and if selected the conversion into an analog value Now a new value can be written to the DAC Data Register DATAREG or after transfer and conversion are completed DACBUSY 0 the same value of the DAC Data Register can be written to another channel The data of the DAC Data Register DATAREG are valid as long as they are not changed by a new write access to this register To use the same value for another output channel just write the new channel to the DAC Channel Select Register 1514 13 1211109 87 65432 10 16 Bit DAC value Figure 6 DATAREG Data Register Note For output mode look Figure 10 Analog Output Code 5 4 Load Register Address 507 The DAC Load Register LOADREG is a 8 bit wide write only register Avery write access to the DAC Load Regi ster updates all 4 DAC output s with the last value writen into the DAC s internal shiftregisters Write accesses to the DAC Load Register LOADREG during DACBUSY active are ignored and set the ERROR flag in the DAC Status Register STATREG TIP551 User Manual Version 1 0 10 TEWS DATENTECHNIK 6 Analog Output Code 6 1 Bipolar Output Code If the DAC channels are configured for 10V output range by the corresponding jumpers the following analog output code is valid DATAREG OUTPUT 7FFF Full Scale 8000 Full Scale 0000 Midscale 6 2 Unipolar Ou
4. Manual Version 1 0 8 TEWS DATENTECHNIK 5 2 Status Register Address 03 DAC BUSY flag Voltage Range flag ERROR flag every write access to the Status Register clears this bit allways read as zero a write to these bits has no effect Figure 5 STATREG Status Register 5 2 1 DACBUSY Reading Bit 0 of the DAC Status Register STATREG as 1 indicates that a serial data transfer to the DAC is in progress Write accesses to the DAC Channel Select Register CHANSEL during DACBUSY active are ignored and set the ERROR flag in the DAC Status Register STATREG 5 2 2 VR Voltage Range Bit 1 of the DAC Status Register indicates the selected Voltage Range according to the jumper setting for the output voltage ranges of the TIP551 Reading bit 1 as 0 means 10V output range and binary two s comple ment as output code reading bit 1 as 1 means OV to 10V output range and straight binary as output code 5 2 3 ERROR Write accesses to the DAC Channel Select Register CHANSEL or awrite access to the DAC Load Register LOA DREG during DACBUSY active are ignored and set the ERROR flag bit 2 in the DAC Status Register STA TREG to 1 Any write access to the DAC Status Register STATREG clears the ERROR flag TIP551 User Manual Version 1 0 9 TEWS DATENTECHNIK 5 3 Data Register Address 04 The DAC Data Register DATAREG is a 16 bit wide read write register The DAC Data Register contains the desi red DAC value
5. to the isolated part of the TIP551 3 2 Data Correction There are two errors which affect the DC accuracy of the DAC The first is the zero error offset For the DAC this is the data value required to produce a zero voltage output signal This error is corrected by subtracting the known error from all readings The second error is the gain error Gain error is the difference between the ideal gain and the actual gain of the DAC It is corrected by multiplying the data value by a correction factor The data correction values are obtained during factory calibration and are stored in the modules individual ver sion of the ID PROM The DAC has a pair of offset and gain correction values for each single output channel The correction values are stored in the ID PROM as two s complement byte wide values in the range 32768 to 32767 For higher accuracy they are scaled to 1 4 LSB Because offset and gain correction values are dependent on the selected output voltage range the TIP551 has 2 different sets of ID PROM data Depending on the jumper settings for the voltage range the corresponding set of correction values is automatically selected TIP551 User Manual Version 1 0 3 TEWS DATENTECHNIK 3 2 1 DAC Correction Formula for OV 10V Output Range The basic formula for correcting unipolar DAC output value is Data Value x 1 aiz Gaincorr 262144 Offsetcorr 4 Data is the digital value that will be sent to the DAC Value is t
6. DAC4 Offset DAC4 Offset DAC1 Gain DAC1 Gain DAC2 Gain DAC2 Gain DAG3 Gain DAG3 Gain DAC4 Gain DAC4 Gain Ch 1 Low Byte S board dependent Ch 1 High Byte board dependent Ch 2 Low Byte board dependent Ch 2 High Byte board dependent Ch 3 Low Byte board dependent Ch 3 High Byte board dependent Ch 4 Low Byte S board dependent Ch 4 High Byte board dependent Ch 1 Low Byte board dependent Ch 1 High Byte board dependent Ch 2 Low Byte board dependent Ch 2 High Byte board dependent Ch 3 Low Byte board dependent Ch 3 High Byte board dependent Ch 4 Low Byte board dependent Ch 4 High Byte 5 board dependent TIP551 User Manual Version 1 0 TEWS DATENTECHNIK ma Not used TENE Figure 2 ID PROM Contents TIP551 10 V1 0 TIP551 User Manual Version 1 0 TEWS DATENTECHNIK 5 IP Addressing The TIP551 is controlled by a set of registers which are directly accessible in the I O address space of the IP All registers are automatically cleared by assertion of IP RESET ADDRESS NAME FUNCTION SIZE ACCESS 01 CHANSEL DAC Channel Select Register byte R W 03 STATUS DAC Status Register byte R W 04 DATAREG DAC Data Register word R W 07 LOADDAC DAC Load Register byte W 09 IDWRENA ID Write Enable Register byte R W Note IDWRENA is for factory use only do not write to this register TIP551 User Manual Version 1 0 7 TEWS DATENTECHNIK 5 1 Channel Select Register Address 01 The DAC Channel
7. Select Register CHANSEL is used to select an output channel This is done by writing the corresponding bit pattern into bit 0 to bit 1 A write access to the CHANSEL register starts the serial datatransfer to the DAC of the value stored in the DAC Data Register DATAREG Be sure that the desired value is stored in the DATAREG before starting the conversion by writing to the DAC Channel Select Register CHANSEL If Bit 7 is set to 1 a load signal is automatically generated after serial data transferto the desired DAC has completed The load signal updates all 4 DAC s with the value of the shift register of each DAC Write accesses to the DAC Channel Select Register during DACBUSY active are ignored and set the ERROR flag in the DAC Status Regi ster STATREG Output Channel Selection allways read as zero a write to these bits has no effect Automatic Load after Data Transfer Figure 3 CHANSEL Channel Select Register 5 1 1 Output Channel Selection Bit 0 to bit 2 of the Channel Select Register are used to select the output channel of the TIP551 Figure 4 Output Channel Select Table 5 1 2 Automatic Load Bit If bit 7 is set to 1 all 4 DAC s are updated automatically after data transmition to the selected DAC channel If bit 7 is set to 0 the user can update all DAC s with a write access to the DAC Load Register immediatly or with the next channel selection with bit 7 is set to 1 after data transmition TIP551 User
8. TEWS DATENTECHNIK TIP551 Optically Isolated 4 Channel 16 Bit D A Version 1 0 Revision A User Manual Issue 1 0 08 September 1997 D75551800 TEWS DATENTECHNIK GmbH Am Bahnhof 7 D 25469 Halstenbek Germany Tel 49 0 4101 4058 0 Fax 49 0 4101 4058 19 TEWS DATENTECHNIK TIP551 User Manual Version 1 0 1 TEWS DATENTECHNIK TIP551 10 Optically isolated 4 channel 16 bit D A OV to 10V or 10V This document contains information which is proprietary to TEWS DATEN TECHNIK GmbH Any reproduction without written permission is forbidden TEWS DATENTECHNIK GmbH has made any effort to ensure that this manual is accurate and complete How ever TEWS DATENTECHNIK GmbH reserves the right to change the product described in this document at any time without notice This product has been designed to operate with IndustryPack compatible carriers Connection to incompatible hardware is likely to cause serious damage TEWS DATEN TECHNIK GmbH is not liable for any damage arising out of the application or use of the device described herein Issue Desscription Date Preliminary issue 20 Aug 1997 Issue 1 0 08 Sep 1997 1997 by TEWS DATEN TECHNIK GmbH IndustryPack is a registered trademark of GreenSpring Computers Inc TIP551 User Manual Version 1 0 2 TEWS DATENTECHNIK 1 Product Description 2 Technical Specification 3 Functional Description
9. he desired output value G incorr and Offsetcorr are the correction factors from the ID PROM 3 2 2 DAC Correction Formula for 10V Output Range The basic formula for correcting bipolar DAC output value is Data Value 1 a G incorr 131 072 WA Offsetcorr 4 Data is the digital value that will be sent to the DAC Value is the desired output value G incorr and Offsetcorr are the correction factors from the ID PROM G incorr and Offsetcorr correction factors are stored separately for each for the four DAC outputs Note Floating point arithmetics or scaled integer arithmetics is necessary to avoid rounding error while computing above formula TIP551 User Manual Version 1 0 4 TEWS DATENTECHNIK 4 ID Prom Contents The Voltage Range bit of the DAC Status Register is used to select the correct set of ID PROM correction values and the output code ID PROM Contents TIP551 10 V1 0 ADDRESS FUNCTION 01 03 05 07 09 OB OD OF 11 13 15 17 ASCII T ASCII P ASCII A ASCII C Manufacturer ID Model Number Revision RESERVED Driver ID low byte Driver ID high byte number of bytes used CRC 49 50 41 43 B3 23 10 00 00 00 1D variable 19 Version 10 0A 1B 1D 1F 21 23 25 27 29 2B 2D 2F 31 33 35 37 39 DAC1 Offset DAC1 Offset DAC2 Offset DAC2 Offset DAC3 Offset DAC3 Offset
10. n Output Voltage Range Settling Time of DAC s Calibration Data Output Current Load Capacitance Accuracy Monotonicity Wait States Power Requirements Temperature Range Humidity IndustryPack Logic Interface single wide IP 50 conductor flat cable 4 channels All D A channels are galvanically isolated from the IP Interface 10V or OV to 10V jumper selectable common for all 4 chan nels to 0 01 typ 10 us Calibration data for gain and offset correction of each channel stored in ID PROM 4mA for each channel typical 1 nF INL 4LSB typ after calibration DNL 0 5 LSB 16 bits over the specified temperature range IDSEL 1 wait state IOSEL 0 wait state 400mA 5V no load 430mA 5V with 4mA output current for each channel Operating 40 C to 85 C Storage 45 C to 125 C 5 95 non condensing TIP551 User Manual Version 1 0 TEWS DATENTECHNIK 3 Functional Description 3 1 Analog Output The TIP551 includes 4 channels of analog outputs with a rtesolution of 16 bits and a voltage range of 10V or OV to 10V The maximum output current for each channel is 4mA Each channel has a typical settling time to 0 01 of 10us Two voltage ranges are jumper selectable 10V or OV to 10V Voltage range selection covers all 4 channels The 4 analog outputs of the TIP551 are galvanically isolated from the IndustryPack logic interface by optocoup ler On board DC DC converters supply the power
11. ns for the TIP551 10 version TIP551 User Manual Version 1 0 14
12. tput Code If the DAC channels are configured for OV to10V output range by the corresponding jumpers the following analog output code is valid DATAREG OUTPUT FFFF Full Scale 8000 Midscale 0000 Zero Scale TIP551 User Manual Version 1 0 11 TEWS DATENTECHNIK 7 Jumper Configuration The TIP551 must be configured by a 3 pin jumperfield for the desired output voltage range 10V or OV to 10V See the following table for the corresponding jumper settings The jumper seting is valid for all 4 DAC channels Voltage range 110V J1 1 2 installed Voltage range OV to 10V Ji 2 3 installed I O Interface fo o g 2 D fe l o Figure 7 TIP551 Jumper Configuration for Voltage Ranges Note Factory configuration is O to 10V for all channels TIP551 User Manual Version 1 0 12 TEWS DATENTECHNIK 8 IP I O connector 8 1 Analog Output Connections Pin Number Signal 01 DAC output 1 02 AGND 03 DAC output 2 04 AGND 05 DAC output 3 06 AGND 07 DAC output 4 08 AGND Figure 8 TIP551 Analog Output Connections TIP551 User Manual Version 1 0 13 TEWS DATENTECHNIK 8 2 Power Input Connections Pin Number Function 44 AGND 45 15V 46 AGND 47 15V 48 AGND 49 5V 50 AGND Figure 9 TIP551 Power Input Connections Note The power input connections are reserved for special versions of the TIP551 without on board DC DC converter Do not supply any voltage to these pi
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